Author: American Powertrain

TREMEC® Transmissions Names American Powertrain™ 2018 Elite Performer at 2018 SEMA Show

Cookeville, TN, (November 19, 2018)American Powertrain™, an industry leader in TREMEC® transmission conversion kits for GM, Ford, Mopar and AMC, has now been named the 2018 Elite Performer by TREMEC Transmissions.  The Elite Performer Award is given to the authorized TREMEC dealer that has the number one sales volume of TREMEC brand performance products for the year. The award was presented to American Powertrain’s owner Robert Hall, at the 2018 SEMA Show by Nate Tovey Enthusiast Marketing Director for TREMEC.

American Powertrain formed in 2006, is an Elite Distributor of TREMEC aftermarket transmissions. The company has long been one of TREMEC’s top performing dealers in the world by becoming a one-stop shop for model specific overdrive transmission installation systems for classic muscle cars, trucks and hot rods.  American Powertrain’s ProFit™ transmission installation systems are recognized for their superior fit and performance. With company’s primary goal of making it easy to convert your classic car over to a modern overdrive transmission. Recognized by the company’s tag—Save The Stick, American Powertrain has grown sales by providing exceptional tech service support, top quality products and all the necessary components to install a modern, problem-free overdrive system.

TREMEC, established in 1964, began as an OE manufacturer of passenger vehicle transmissions for Ford, GM and Chrysler. The company established their performance aftermarket transmission line in the late 1990s that today includes T-5, 5-speed rear wheel drive transmissions, TKO 5-speed rear wheel drive transmissions, Magnum and Magnum XL 6-speed rear-wheel drive transmissions to retrofit early model vehicles with a late model overdrive manual transmission system. TREMEC’s aftermarket transmissions feature multiple shifter locations, a variety of gear ratio options, dual speedometer pick-ups and are available with either single or double overdrive.


Matt Graves, American Powertrain’s Marketing Manager, says, “This is an incredible honor to be given the Elite Performer Award. That’s quite an achievement and it speaks volumes about our staff that works tirelessly to help our customers get the right parts that achieves their goals. If you are thinking about converting to a more modern overdrive, it’s best to start with a call to American Powertrain.”

For more information about American Powertrain TREMEC transmission overdrive kits for Ford, GM or Mopar, visit To speak with one of American Powertrain’s highly qualified technicians, call 931-646-4836.



Squarebody Syndicate Indy Hauler Premiers at 2018 SEMA show

American Powertrain was very proud to sponsor  Joe Yezzi’s Squarebody Syndicate group Syndicate Series 02, a tribute to the “Indy Haulers” from the 1975 Indianapolis 500. Twenty-seven of those trucks patrolled Indianapolis Motor Speedway.  Very limited edition truck. Only one is still on the road today.

This truck built-from-the-ground-up ’76 model, blew everyone away when unveiled Oct. 30 at the SEMA Show in Las Vegas, taking the GM Design Award and wining one of Top Five Chevy vehicles at the entire show.

Motivated by a supercharged GM Performance LS3 crate motor by Pro-Dyno with 70s look and feel with all the latest technology. White powder coated headers, classic looking “Moroso” style valve covers and more. This thing screams retro but is packed with lots of technology. Featuring our TREMEC 6-speed Magnum and Hydramax hydraulic clutch for Squarebody’s. Helps get this truck rolling down the road with great performance and fuel mileage. 20″ Vector style turbine wheels just nail the look. Tons of great sponsors such as Holley, GM Performance, Baer brakes and the Roadster Shop to name just a few. One of our favorite parts? The “Wink” rear view mirror…Very 90’s cruising style…





BaconShift 2018 Holiday Sale

It’s that time of year again for #BaconShift! Starting Nov 21st through Jan 1st. Get Free Shipping to the lower 48 on all non freight items (TKO 5-speeds ship ground for free!) Get $100 off freight charges for 6-speeds, rear ends and engines. Also any transmission order gets 3 lbs of the best bacon on earth. Benton’s Bacon out of Madisonville, TN. Phone in orders only. 931-646-4836 or you can start your quote by hitting our RFQ link here.


Shifter stuck in gear after your new transmission shows up? Here is the cure…

American Powertrain TKO Shift Assembly Re-alignment Procedure.

Background: Your brand new TREMEC TKO shows up in at your shop or house…You rush out to open it up get it in the shop and it will not shift through the gears! Sometimes your new transmission may get jostled during shipping, causing a misalignment of the shift mechanism. You should shift your transmission through all the gears before putting it in the car and rotate the input shaft to make sure it moves freely.

Note that reverse must be engaged from the neutral position. The transmission has a mechanical reverse lock-out that will not allow a straight shift from 5th to reverse.

If your transmission shifts into all gear positions and the input rotates freely you may proceed with installation.

Should you have a transmission that is locked up due to misalignment you can easily correct the problem with a few simple tools in about fifteen minutes.

Correction Procedure:

Step 1: If you have a clutch disc handy, place it on the input shaft and attempt to turn the disc like a steering wheel. If the alignment issue is minor this will often correct the problem.

If that fails, move on to step 2

Step 2: Remove the four bolts that secure the mid-plate on top of the transmission. This is the flat five-sided plate in the center of the gearbox. See image:


Step 3:  Gently pry the cover off with a flat blade screwdriver or small pry bar.  Work slowly around the periphery of the plate and do not bend the cover.  A chisel punch can be used with a small hammer if used carefully.

Step 4: Under the cover you will find three shift lugs. These lugs should be aligned in neutral position as shown in the image.

Step 5: If they are not aligned use a large screwdriver or small pry bar to move the lugs back to neutral

Note the arrow pointing to the right lug in an incorrect forward position. You may need to move more than one lug. There will be an audible click when each lug is in neutral and you will feel the neutral detent.

Once the lugs are re-aligned the shifter should move freely through the gears and the input shaft should rotate freely. You can test this with the cover off.

Step 5: Now that the transmission is operating properly, remove the gasket sealer from the case and cover plate using solvent and a rag. You may use a razor blade on the case, but do not use a razor on the cover. The sealant will rub away with a rag and solvent. Run a continuous 1/8” bead of grey gasket sealer on the top of the case and around the bolt holes. Then reaffix the cover.

NOTE: Don’t go crazy with the gasket sealer. You don’t want chunks of it dropping off and gumming up the linkage.

If these steps do not correct your problem you will need to contact us for help at 931.646.4836. If your transmission was damaged in shipping we will need images of the transmission and the original shipping carton inside and out. This will allow us to make a claim with the shipping company. Our tech support folks can walk you through this procedure.

Thank you for working through this simple issue. Enjoy your TREMEC TKO.